Database Info

Root/downgrade options for H81020n

I had to make an insurance claim on my AT&T G3 recently and they sent me a G4 Android 6.0 / h81020n, build MRA58k. From what I understand, there's no way to root it and many don't expect there will be for a while...is that right? If so, what are my best options to downgrade and then root it? It's my only phone, and though I'm extremely competent with this stuff, I need to be sure it's a surefire method of downgrading. Thanks

noamo48 said:
I had to make an insurance claim on my AT&T G3 recently and they sent me a G4 Android 6.0 / h81020n, build MRA58k. From what I understand, there's no way to root it and many don't expect there will be for a while...is that right? If so, what are my best options to downgrade and then root it? It's my only phone, and though I'm extremely competent with this stuff, I need to be sure it's a surefire method of downgrading. Thanks
Click to expand...
Click to collapse
As of now, I'm going to be bold with my statement about the G4: The AT&T cannot and will not ever have an unlocked bootloader. I would also assert the likelihood of root on Marshmallow is slim to none. I'd say "none", except there's always a remote chance that someone with the time/money/know-how will decide not to give up until they've figured it out.
When you say "downgrading", I presume you mean going back to a previous build? If so, it is not possible. It would require the level of access that only an unlocked bootloader could provide, from what I understand. I think there was mention of some sort of bypass option that works on other devices, but it doesn't work with this one.
Long story short: get comfortable with your current experience, because it isn't likely to ever change with this device. I too had to replace my device under warranty (for the 2nd time), and was bummed when the replacement arrived having Marshmallow on it.

noamo48 said:
I had to make an insurance claim on my AT&T G3 recently and they sent me a G4 Android 6.0 / h81020n, build MRA58k. From what I understand, there's no way to root it and many don't expect there will be for a while...is that right? If so, what are my best options to downgrade and then root it? It's my only phone, and though I'm extremely competent with this stuff, I need to be sure it's a surefire method of downgrading. Thanks
Click to expand...
Click to collapse
I have not been able to downgrade H81020n since I got a replacement phone due to the infamous bootloop issue. I'm starting to wonder if somehow AT&T with or without support of LGE figured out which phones were rooted and injected some network packets to stress the radios in this device causing failures.
What's really unfortunate is the replacement devices all come with Marshmallow 6.0 on the H81020n ROM. That locked-down image, with the locked bootloader have made this device much less fun.
I've tried several downgrade paths with no success; the low-effort Root method, TOT downgrades with the LG flash utility, and good old fashioned send_commands.exe for image restoration to stock.

You need to use LGUP
http://forum.xda-developers.com/showpost.php?p=66316842&postcount=113

smknutson said:
You need to use LGUP
http://forum.xda-developers.com/showpost.php?p=66316842&postcount=113
Click to expand...
Click to collapse
I have LGUP and the .tot file. LGUP just won't allow me to flash it for some reason ?....
Sent from my LG-H810 using XDA-Developers mobile app

BTMoneyGang said:
I have LGUP and the .tot file. LGUP just won't allow me to flash it for some reason ?....
Sent from my LG-H810 using XDA-Developers mobile app
Click to expand...
Click to collapse
Did you load the.tot, close the LGUP program then reopen it and attempt the flash?
Did you change the Port # in Device Manager?

Can the same downgrade be done on 21y for h810 I miss root

My At&T LG G4 refuses to update marshmallow (Android 6)

Hello House,
Please can anyone help me out??
I got an AT&T unlocked phone from a friend in the U.S. Phone works fine but is on Android 5.1. I want to upgrade to Android 6. I tried software update from settings-about phone-update center. Update fails at 1% with error: software update unavailable. Please contact LG customer service... err:0x112500. I checked the net and got a OTA file that some guys claim will update without an AT&T sim. I tried updating this using FOTA via adb: same error at 1%. I tried updating using LGUP with the OTA file: same error at 1%. Please can anyone help out on how to update this phone!!!
I'm on build LMY47D, software version: H81010o
Would really appreciate any assistance.

My At&T LG G4 refuses to update marshmallow (Android 6)
emaoke said:
Hello House,
Please can anyone help me out??
I got an AT&T unlocked phone from a friend in the U.S. Phone works fine but is on Android 5.1. I want to upgrade to Android 6. I tried software update from settings-about phone-update center. Update fails at 1% with error: software update unavailable. Please contact LG customer service... err:0x112500. I checked the net and got a OTA file that some guys claim will update without an AT&T sim. I tried updating this using FOTA via adb: same error at 1%. I tried updating using LGUP with the OTA file: same error at 1%. Please can anyone help out on how to update this phone!!!
I'm on build LMY47D, software version: H81010o
Would really appreciate any assistance.
Click to expand...
Click to collapse
You’ll need to update via an AT&T sim. If it won’t update it an att sim you might not have an actual H810. A lot of people have problems with the phone after updating so I wouldn’t recommend it anyway.
Sent from my iPhone using Tapatalk

hyelton said:
You’ll need to update via an AT&T sim. If it won’t update it an att sim you might not have an actual H810. A lot of people have problems with the phone after updating so I wouldn’t recommend it anyway.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Hi Hyelton,
Thanks for the super prompt response. Unfortunately I'm not in the US and do not have access to a ATT sim. even if i had, there is no network for ATT where I am. Based on my research online, others were able to update without the sim card using FOTA via adb and LGUp. I just don't understand why mine is giving me so much stress. The phone is a H810. Can send a screenshot of phone's software details page. I need the phone to be on Android 6 cos I need to install my office apps on the phone and only android 6 or above is supported.....

emaoke said:
Hi Hyelton,
Thanks for the super prompt response. Unfortunately I'm not in the US and do not have access to a ATT sim. even if i had, there is no network for ATT where I am. Based on my research online, others were able to update without the sim card using FOTA via adb and LGUp. I just don't understand why mine is giving me so much stress. The phone is a H810. Can send a screenshot of phone's software details page. I need the phone to be on Android 6 cos I need to install my office apps on the phone and only android 6 or above is supported.....
Click to expand...
Click to collapse
The phones software details doesn't show the actual model just the software installed. Just throwing it out there it's common when it comes to the H810 to be sold to someone and its not an H810. Especially if your friend bought it referbed
Sent from my Z982 using Tapatalk

hyelton said:
The phones software details doesn't show the actual model just the software installed. Just throwing it out there it's common when it comes to the H810 to be sold to someone and its not an H810. Especially if your friend bought it referbed
Sent from my Z982 using Tapatalk
Click to expand...
Click to collapse
Ok, so how do I if it is real H810 or not? Any clues? If its not, can I flask it with the stock firmware for the particular model?

emaoke said:
Ok, so how do I if it is real H810 or not? Any clues? If its not, can I flask it with the stock firmware for the particular model?
Click to expand...
Click to collapse
Hi Hyelton,
Can I flash the phone with stock MM firmware for AT&T, will that work (ie: upgrade the phone to MM)? Can you assist with a guide for this? Would really appreciate any assistance you or any one could give....

emaoke said:
Ok, so how do I if it is real H810 or not? Any clues? If its not, can I flask it with the stock firmware for the particular model?
Click to expand...
Click to collapse
Only real way to know is to take the phone apart and look on the motherboard. Not saying it’s not an H810. But it’s extremely common
Sent from my iPhone using Tapatalk
---------- Post added at 06:13 PM ---------- Previous post was at 06:13 PM ----------
emaoke said:
Hi Hyelton,
Can I flash the phone with stock MM firmware for AT&T, will that work (ie: upgrade the phone to MM)? Can you assist with a guide for this? Would really appreciate any assistance you or any one could give....
Click to expand...
Click to collapse
Sadly that’s not possible as there’s no stock MM firmware. And most likely never will be
Sent from my iPhone using Tapatalk

hyelton said:
Only real way to know is to take the phone apart and look on the motherboard. Not saying it’s not an H810. But it’s extremely common
Sent from my iPhone using Tapatalk
---------- Post added at 06:13 PM ---------- Previous post was at 06:13 PM ----------
Sadly that’s not possible as there’s no stock MM firmware. And most likely never will be
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Ok. I got a tot on the net: LGH810AT-01-V21y-310-410-JUN-20-2016-ARB03+0
If I flash this, i should get updated to MM right? Also, I thought this file was stock MM firmware for the LG810?

emaoke said:
Ok. I got a tot on the net: LGH810AT-01-V21y-310-410-JUN-20-2016-ARB03+0
If I flash this, i should get updated to MM right? Also, I thought this file was stock MM firmware for the LG810?
Click to expand...
Click to collapse
Just double checked sorry about that, yeah got that file back in March it’s even in the OP links. Yes you can flash that. Just be sure you have an actual H810 or you’ll really screw up the device when flashing.
Sent from my iPhone using Tapatalk

hyelton said:
Just double checked sorry about that, yeah got that file back in March it’s even in the OP links. Yes you can flash that. Just be sure you have an actual H810 or you’ll really screw up the device when flashing.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Hey Hyelton,
Thanks so much, I appreciate your help so far. Do you have instructions for flashing? (havent flashed LG before). Can I use LGUP and if I do, what do I select? refurbish or upgrade?

emaoke said:
Hey Hyelton,
Thanks so much, I appreciate your help so far. Do you have instructions for flashing? (havent flashed LG before). Can I use LGUP and if I do, what do I select? refurbish or upgrade?
Click to expand...
Click to collapse
It’s in the guide/thread your posting in . Yes you would use LGUP and choose refurbish if you cannot select the tot choose upgrade, select the tot then go back and choose refurbish.
Some things to remember. If it is a wrong model phone flash will either fail and you’ll be stuck, or the update will work but under settings and privacy /password and a few other things will no longer be usable.
Also you won’t be able to downgrade once you flash this.
Sent from my iPhone using Tapatalk

hyelton said:
It’s in the guide/thread your posting in . Yes you would use LGUP and choose refurbish if you cannot select the tot choose upgrade, select the tot then go back and choose refurbish.
Some things to remember. If it is a wrong model phone flash will either fail and you’ll be stuck, or the update will work but under settings and privacy /password and a few other things will no longer be usable.
Also you won’t be able to downgrade once you flash this.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Hi Hyelton,
So I flashed the phone and the upgrade worked. However unfortunately, I cant get into the security settings, my lock screen settings is stuck on swipe(other lock methods fail). and phone wifi does not work with enterprise wifi that is secured. Do you have any fix for this? If this is a board issue, maybe I should open the board and flash it with the appropriate firmware for the board (ie: If H815, flash with MM for 815 etc)-what do you think?

emaoke said:
Hi Hyelton,
So I flashed the phone and the upgrade worked. However unfortunately, I cant get into the security settings, my lock screen settings is stuck on swipe(other lock methods fail). and phone wifi does not work with enterprise wifi that is secured. Do you have any fix for this? If this is a board issue, maybe I should open the board and flash it with the appropriate firmware for the board (ie: If H815, flash with MM for 815 etc)-what do you think?
Click to expand...
Click to collapse
Just an update; opened the motherboard, its a H810. not sure why I'm having this security setting issue. also, funny enough, I can now update software directly from AT&T server. My 20y is now 22c! if I can just fix this "unfortunately, the process com.android.settings has stopped" error on the security settings, I will be fine.
Please anyone have a solution to this?

emaoke said:
Just an update; opened the motherboard, its a H810. not sure why I'm having this security setting issue. also, funny enough, I can now update software directly from AT&T server. My 20y is now 22c! if I can just fix this "unfortunately, the process com.android.settings has stopped" error on the security settings, I will be fine.
Please anyone have a solution to this?
Click to expand...
Click to collapse
Sadly that error is symptom is common across a lot of AT&T G4s both faked and real. Only fix is to have its board replaced. There’s no fix for it.
Sent from my iPhone using Tapatalk

hyelton said:
Sadly that error is symptom is common across a lot of AT&T G4s both faked and real. Only fix is to have its board replaced. There’s no fix for it.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Ok, can a custom MM ROM be installed on this board? do you know any that can be installed on H810?

emaoke said:
Ok, can a custom MM ROM be installed on this board? do you know any that can be installed on H810?
Click to expand...
Click to collapse
Not sure if there’s any custom Roms for the H810 but if there are you can’t root or flash them since you have upgraded.
Sent from my iPhone using Tapatalk

Android 9 Pie .kdz

Well I've obtained the actual .kdz file from the pre beta program in Korea. Now too flash it into my Canadian g710awm. The firmware is actually for model# g710N so wish me luck...

ryn.ste said:
Well I've obtained the actual .kdz file from the pre beta program in Korea. Now too flash it into my Canadian g710awm. The firmware is actually for model# g710N so wish me luck...
Click to expand...
Click to collapse
Can u share the link I wanna try it also

ryn.ste said:
Well I've obtained the actual .kdz file from the pre beta program in Korea. Now too flash it into my Canadian g710awm. The firmware is actually for model# g710N so wish me luck...
Click to expand...
Click to collapse
Is it a 8.0 kdz to update to 9.0 or directly a 9.0 kdz?

Did it work?

MishaalRahman said:
Did it work?
Click to expand...
Click to collapse
Lack of response, I'm gonna guess no? LoL

dah brick dah bricks.

???

The suspense is killing me. Personally I'm waiting for the official, but it would be nice to know...

i guess i would be able to flash it on my g7 , but i only have a .up file instead of a kdz and that doesnt work

Warning!
From what I read recently; LG has started to use unique RSA keys for each device (within a group, i.e G7) starting with V35 (I think), thus flashing a KDZ from another G7 would definitively cause hardbrick.
Edit: Apparently this was (mostly?) wrong. At least some confirmed models can be cross-flashed.

askermk2000 said:
Warning!
From what I read recently; LG has started to use unique RSA keys for each device (within a group, i.e G7) starting with V35 (I think), thus flashing a KDZ from another G7 would definitively cause hardbrick.
Click to expand...
Click to collapse
I thought that was only for TMoile but not the rest of variants?

GROOVYJOSHCLARK said:
I thought that was only for TMoile but not the rest of variants?
Click to expand...
Click to collapse
Well, like I said, not anymore.
IIRC, this is what @runningnak3d said in a tread somewhere (I don't recall exactly, maybe V30 forums).
He is the current resident expert on LG root, and bootloader matters. At least the most active one, and he's provided root for many previous LG devices.

askermk2000 said:
Well, like I said, not anymore.
IIRC, this is what @runningnak3d said in a tread somewhere (I don't recall exactly, maybe V30 forums).
He is the current resident expert on LG root, and bootloader matters. At least the most active one, and he's provided root for many previous LG devices.
Click to expand...
Click to collapse
I am definitely not arguing as I dont know the answer 100% myself.
What I DO know for sure is that I can, (and I have) flashed other LG G7's firmware on my G7 (Sprint) through my Octoplus box. This is using the Octoplus box, not LGUP, but if the RSA keys were an issue, I would expect it to not work (flashing another variant .KDZ), or I would expect the device not to work (boot) afterwards. It boots and works just fine. I also know of numerous others who have converted their LG G7's (except TMobile) to the unlocked model (ULM). My understanding was that only the TMobile ones were using a custom RSA key coming FROM TMobile themselves (I could be wrong but this is what I read) and since I dont own a TMobile flavor, I cant test myself to confirm.

In that case maybe I remember wrong, or runningnak3d statement was not accurate (maybe doesn't apply to G7 specifically).

askermk2000 said:
In that case maybe I remember wrong, or runningnak3d statement was not accurate (maybe doesn't apply to G7 specifically).
Click to expand...
Click to collapse
All good, I dont know for sure myself so I cant confirm nor deny anything except for my personal Octoplus flashing. I just want ROOT, thats what I am pressing through to figure out how to achieve. I HATE that LG locks the bootloaders, if I had known prior, I would NEVER have switched from HTC!
LG mobile will go out of business soon enough if they dont cut the crap.

Yeah, not to mention that we don't have a way to fix ourselves bricked devices. It would be a trivial matter with a simple qualcomm type firehose-file.
Instead now it's basically dead weight. They seem to think it's ok to produce lots of electronic garbage, and not make efforts to reduce this.

askermk2000 said:
Yeah, not to mention that we don't have a way to fix ourselves bricked devices. It would be a trivial matter with a simple qualcomm type firehose-file.
Instead now it's basically dead weight. They seem to think it's ok to produce lots of electronic garbage, and not make efforts to reduce this.
Click to expand...
Click to collapse
Exactly, hopefully the drop in sales will be enough to kick their butt's in gear BEFORE they become the next Blackberry! If they would simply give us a restore KDZ, we would love LG, instead, they lock us out, and make it damn near impossible to restore or recover our devices from normal things, such as a bad OTA updates. BUT NO, for some dumb A$$ reasons, they dont so it WILL be their demise. Its almost like being able to see the future. If they took notice of all the predecessors before them, all their mistakes, made changes then history wouldn't have to repeat itself. If not, LG will be another forgotten company no one gives a crap about.

GROOVYJOSHCLARK said:
I am definitely not arguing as I dont know the answer 100% myself.
What I DO know for sure is that I can, (and I have) flashed other LG G7's firmware on my G7 (Sprint) through my Octoplus box. This is using the Octoplus box, not LGUP, but if the RSA keys were an issue, I would expect it to not work (flashing another variant .KDZ), or I would expect the device not to work (boot) afterwards. It boots and works just fine. I also know of numerous others who have converted their LG G7's (except TMobile) to the unlocked model (ULM). My understanding was that only the TMobile ones were using a custom RSA key coming FROM TMobile themselves (I could be wrong but this is what I read) and since I dont own a TMobile flavor, I cant test myself to confirm.
Click to expand...
Click to collapse
What partitions did you flash?
All of the KDZs I have been able to pull down have different RSA certs (granted it is only a couple) but it is not just the TMO that was different.
If you don't mind, link to the exact KDZ for your model, and the KDZ that you flashed -- I would love to compare the certs.
-- Brian

runningnak3d said:
What partitions did you flash?
All of the KDZs I have been able to pull down have different RSA certs (granted it is only a couple) but it is not just the TMO that was different.
If you don't mind, link to the exact KDZ for your model, and the KDZ that you flashed -- I would love to compare the certs.
-- Brian
Click to expand...
Click to collapse
There is no KDZ for the PM (Sprint model) yet so I cannot go back to Sprint or link to one (until one is released) but I wish there was one for others who are in a loop or brick situation, here are the 2 I used:
EM (European Model - bootload unlockable approved by LG):
G710EM10b_00_0521.kdz
https://drive.google.com/file/d/1W14Y-jbvnwDt4UOfitni8hDGfwYsXesV/view?usp=sharing
ULM (US Unlocked Model):
G710ULM10g_00_NAO_US_OP_0913.kdz
http://pkg02.lime.gdms.lge.com/dn/d...XADM55F9FR80/G710ULM10g_00_NAO_US_OP_0913.kdz
I flash ALL partitions through Octoplus EXCEPT the modems (MODEM1/2), I left those from Sprint (stock), not sure if it helps or not, but I have service so I like to think it did. There are lots of users who have also used the LGUP (somehow) to cross flash the KDZ's to the ULM (unlocked) model but I haven't personally used this LGUP method so I cant comment if its valid or not. Octoplus, most definitely works though (and I have the logs to show the partitions if one was interested).

GROOVYJOSHCLARK said:
There is no KDZ for the PM (Sprint model) yet so I cannot go back to Sprint or link to one (until one is released) but I wish there was one for others who are in a loop or brick situation, here are the 2 I used:
<snip>
Click to expand...
Click to collapse
There will never be a Sprint KDZ -- neither Sprint or AT&T release KDZs (I don't think they even use them internally).
I am downloading them now, and I will pull the certs / post the results as soon as they are done.
Thanks!
-- Brian

Install Android Pie on every LG G7? Yes, now is possible!

As you know, the video tutorial thread was closed due to posting forbidden links.
Has anyone installed Pie? I am intrested in G7 Plus EAW version.
L. E. Now it is possible to flash android pie on every lg g7. Here: https://forum.xda-developers.com/lg...how-to-install-pie-stock-treble-aosp-t3914079
Credits to LameMonster

I've found a way to install pie to my USA unlocked G7. It worked pretty well, just wasn't able to use Google pay anymore.
Edit: I can try to post a tutorial today.

Could you send me the video link via email? the rom has Portuguese Br? email: [email protected]

In the original video that was posted on youtube, they used a decompiler to mod LGUP but you can download one that has the Partition DL option in it here: https://androidfilehost.com/?fid=11410963190603845019
All you need then I think is the .KDZ file. I've been using the korean pie build for a few days and I do miss Google pay, but its pretty good and still pretty similar to oreo.

It works! i upgraded to android 9 via this lg up! ?
calxk713 said:
In the original video that was posted on youtube, they used a decompiler to mod LGUP but you can download one that has the Partition DL option in it here: //link
All you need then I think is the .KDZ file. I've been using the korean pie build for a few days and I do miss Google pay, but its pretty good and still pretty similar to oreo.
Click to expand...
Click to collapse
I was originally owned lg g7 thinq sprint version, then converted it to ulm version, and i was in september patch before android 9, today with this lg up software described in link, i updated my device, the kdz i used to upgrade, i found on youtube, which uploaded by the user with closed post about updating to 9. sorry for bad english

Its work G710EMW?

I did not understand anything about the video. Help

Have updated the sprint lg g7 to Korean pie.
Unzip the archive, run installer, then copy all to c:/program files (x86)/Lgup dir, run with admin permissions dev bat file, and run lgupd.exe with admin permissions, set the partition dl, check all flags, and flash.
View attachment 4696100

My PC won't recognize my LG G7 Sprint version can anyone help
---------- Post added at 01:38 AM ---------- Previous post was at 01:36 AM ----------
drew272011 said:
My PC won't recognize my LG G7 Sprint version can anyone help
Click to expand...
Click to collapse
Saying no handset comnected

Can you post any tutorial?

European g 7 got 10q on 23 january.

Has anyone tried LG G7+ G710EAW

does anyone know or have tried any of this PIE to work with Verizon models?
i'm getting the SKT to try it out but it's a pain to DL here in the middle kingdom
Android 9.0 Pie
LMG710N20c / KTF G710N20c_00_KT_KR_OP_0107.kdz
LMG710N10p / LGT G710N20c_00_LGU_KR_OP_0107.kdz
LMG710N10p / SKT G710N20c_00_SKT_KR_OP_0107.kdz
Click to expand...
Click to collapse
https://www.lgdestek.net/lg-g7-thinq-stock-rom-kdz-yazilimi-indir-42710/

Installed pie on one of those ulm g7s. Pie installed no problem except on Verizon I get data, but no calls or sms. Other than that it's pretty smooth. Would experiment with it more if I could make phone calls. Any suggestions? I'm in the U.S.

@dexx121 which one have you tried? I think S/K/L have different freq. for each provider.
Also how did you flash it? My "G710VM10H" verizon type always stop @ 4% or 11%. I've tried Partition DL, refurb & upgrade all the same. now i'm stuck at the firmware screen
also tried the LGUP Dual & still has errors or looking for DLL for G710VM10H, same when using uppercut.

mengfei said:
@dexx121 which one have you tried? I think S/K/L have different freq. for each provider.
Also how did you flash it? My "G710VM10H" verizon type always stop @ 4% or 11%. I've tried Partition DL, refurb & upgrade all the same. now i'm stuck at the firmware screen
also tried the LGUP Dual & still has errors or looking for DLL for G710VM10H, same when using uppercut.
Click to expand...
Click to collapse
I have tried all three versions of Pie. Same result with all (data, but no phone calls or SMS). I have one of those sprint converted to unlocked g7s (lg710pm) to (g710ulm10g). Sounds like your G7 is the Verizon brand. I'm not sure if those can be flashed with non verizon firmware. Maybe someone with the G710VM10H can chime in and confirm. What error message are you getting when LGUP stops?

@dexx121
these kind of errors
https://forum.xda-developers.com/lg-g7-thinq/help/support-cross-model-download-g710vm-to-t3896761

licbez said:
Have updated the sprint lg g7 to Korean pie.
Unzip the archive, run installer, then copy all to c:/program files (x86)/Lgup dir, run with admin permissions dev bat file, and run lgupd.exe with admin permissions, set the partition dl, check all flags, and flash.
View attachment 4696100
Click to expand...
Click to collapse
Awesome! Now we have G710ULM20c unofficially ))

cosmin971 said:
European g 7 got 10q on 23 january.
Click to expand...
Click to collapse
Is there a list somewhere of current status by model #? I picked up a G710EM (is that "European"?) yesterday and I haven't seen anything about an update yet.

Ghengis042 said:
Is there a list somewhere of current status by model #? I picked up a G710EM (is that "European"?) yesterday and I haven't seen anything about an update yet.
Click to expand...
Click to collapse
Here you are: lg-firmwares.com/lg-lmg710em-firmwares/#tab=firmwares

About those ULM models on ebay...

There's been a lot of new users picking up cheap G7 ThinQ G710ULM (US Unlocked) versions on ebay lately, then getting frustrated when they find out it a hacked Sprint version (G710pm).
I'm finding posts from new users on different corners of the internet, Telegram groups, Reddit, etc, usually saying that they can't upgrade from Oreo and their device is missing a serial number, and the IMEI is actually from the Sprint pm version. I couldn't find a lot of info in one place about these handsets, so I'm starting this thread to discuss them. There's a good chance any ULM on ebay for a good price is one of these. I bought 3 of them for different people from different sellers, and this was the case on all of them. I almost returned them all and gave up until I did some research and found out THIS ISN'T NECESSARILY A BAD THING!
In fact, it may actually be beneficial compared to the real ULM version in some ways. First of all, it WILL work with T-mobile USA just fine. The bands all seem to work, it even supports WiFi calling and VOLTE, and there's a chance even B71 will work (although this isn't 100% verified, it shows up as an available band to test in the service menu). The real ULM supposedly skips this band. Some people even say the real ULM version is also missing bands for AT&T, but the PM crossflashed version seems to connect to them (this might be an isolated incident or fluke, but at least one redditor claims this was his experience). I'm still not clear on how the unlocked official US version can be missing AT&T bands, so I'd love for other people to maybe chime in here with their experiences.
Yes, you can update to Pie. The OTA updates won't work, likely because of the missing serial number. On that note, I'd LOVE to find out why that is. Can anyone explain why these crossflashed devices are missing the SN? Does that happen on other crossflashed devices?
Either way, follow this guide here:
https://forum.xda-developers.com/lg...how-to-install-pie-stock-treble-aosp-t3914079
Note, this guide was written for flashing a European variant, but the same steps apply. Just choose a kdz for the ULM variant from here: https://lg-firmwares.com/lg-lmg710ulm-firmwares/#tab=firmwares
^ I recommend the latest Google Fi firmware version, which is G710ULM20e_00_NAO_US_OP_1010.kdz , from 2019-11-14
There is a more recent version from BPT, but it is unclear what that firmware is for. BPT seems to be some sort of regional carrier, so you are better off with the regular USA or Fi version.
Also note, you may need to use 7zip to extract the dll file from that guide. That took me a while to figure out, as Windows explorer throws an error with it. Once you finish, your phone will reboot with a shiny new (relatively) up to date Pie firmware!
There. You now saved yourself a few bucks and got a solid phone. Feel free to share your experiences with the handset here.

Dishe said:
There's been a lot of new users picking up cheap G7 ThinQ G710ULM (US Unlocked) versions on ebay lately, then getting frustrated when they find out it a hacked Sprint version (G710pm).
I'm finding posts from new users on different corners of the internet, Telegram groups, Reddit, etc, usually saying that they can't upgrade from Oreo and their device is missing a serial number, and the IMEI is actually from the Sprint pm version. I couldn't find a lot of info in one place about these handsets, so I'm starting this thread to discuss them. There's a good chance any ULM on ebay for a good price is one of these. I bought 3 of them for different people from different sellers, and this was the case on all of them. I almost returned them all and gave up until I did some research and found out THIS ISN'T NECESSARILY A BAD THING!
In fact, it may actually be beneficial compared to the real ULM version in some ways. First of all, it WILL work with T-mobile USA just fine. The bands all seem to work, it even supports WiFi calling and VOLTE, and there's a chance even B71 will work (although this isn't 100% verified, it shows up as an available band to test in the service menu). The real ULM supposedly skips this band. Some people even say the real ULM version is also missing bands for AT&T, but the PM crossflashed version seems to connect to them (this might be an isolated incident or fluke, but at least one redditor claims this was his experience). I'm still not clear on how the unlocked official US version can be missing AT&T bands, so I'd love for other people to maybe chime in here with their experiences.
Yes, you can update to Pie. The OTA updates won't work, likely because of the missing serial number. On that note, I'd LOVE to find out why that is. Can anyone explain why these crossflashed devices are missing the SN? Does that happen on other crossflashed devices?
Either way, follow this guide here:
https://forum.xda-developers.com/lg...how-to-install-pie-stock-treble-aosp-t3914079
Note, this guide was written for flashing a European variant, but the same steps apply. Just choose a kdz for the ULM variant from here: https://lg-firmwares.com/lg-lmg710ulm-firmwares/#tab=firmwares
^ I recommend the latest Google Fi firmware version, which is G710ULM20e_00_NAO_US_OP_1010.kdz , from 2019-11-14
There is a more recent version from BPT, but it is unclear what that firmware is for. BPT seems to be some sort of regional carrier, so you are better off with the regular USA or Fi version.
Also note, you may need to use 7zip to extract the dll file from that guide. That took me a while to figure out, as Windows explorer throws an error with it. Once you finish, your phone will reboot with a shiny new (relatively) up to date Pie firmware!
There. You now saved yourself a few bucks and got a solid phone. Feel free to share your experiences with the handset here.
Click to expand...
Click to collapse
The devices lose the s/n and possibly imei because people are flashing using lgup 1.14 dev version which causes issues with nvdata.
Lgup 1.15 fixes this when you go back to oreo then update to pie.
Also crossflashed devices do not get ota because lgup marks these devices as crossflashed in nvdata using a 0x01 value for certified_device

loonycgb2 said:
The devices lose the s/n and possibly imei because people are flashing using lgup 1.14 dev version which causes issues with nvdata.
Click to expand...
Click to collapse
Wow, that's some good info right there, thank you for sharing!
Hmm- messing with nvdata though? So you're saying the SN missing is some sort of accident or goof? That doesn't sound so cool. Should I be concerned anything else is messed up? There's a ton of these in the wild now and it seems the SN is the only weird side effect that has been noticed.
As far as I know the IMEI is fine (looking it up reveals it is a PM imei, which is correct, and it does work with voice over Wifi and VOLTE, which I think wouldn't work if the IMEI was messed up). In fact, it's interesting because when that screen loads in Settings>About, etc, it shows "checking" under S/N, then checking goes away and it comes back blank. None of the other fields seem to need any sort of checking first. There's something fishy about how the S/N is stored that it has to check it first and then error out.
Lgup 1.15 fixes this when you go back to oreo then update to pie.
Click to expand...
Click to collapse
Hmm. It came with Oreo, and I used 1.15 to flash to Pie. So you're saying I should flash another Oreo kdz with my LGUP and it will magically fix any corrupt NVdata?
Also crossflashed devices do not get ota because lgup marks these devices as crossflashed in nvdata using a 0x01 value for certified_device
Click to expand...
Click to collapse
Oh, that is unfortunate. And that value stays with it forever, even if you go back to it's native firmware? I'm assuming that value can't be manipulated with any of the tools we have available.
Thank you so much for sharing this knowledge. Any insight on how the bands work? Is that from nvdata as well, and completely independent of firmware? So essentially, I have whatever band support a G710pm has? Or perhaps was it manipulated by the seller/refurbisher, who possibly used some nvram voodoo tricks which killed the S/N as a result?

Even tho the s/n is blank and at time if you try to show the imei it might also be blank, it is still stored internally and not lost forever.
There is multiple oreo's which for ulm is 10g and 11g, but i would have said flash to the original firmware but you cannot as sprint kdz is not available and the people who have an Original firmware still on device cannot or will not back it up for us.
The value for certified device returns to normal when flashed to the original firmware as lgup has an internal database used for identifying models.
As far as the basebands, all g7 thinq's come with the same bands no matter the firmware or region. The difference is the kdz gives band priority to the ones prefered by the carrier.
All of that can be changed by getting into the lg data secret menu or the dialer code menu

Remember now bootloader and root for the LG g7 is just the beginning. You talk about nvdata you might as well throw out EFS backup as well.
The point is that TWRP creates faulty EFS backups on many devices which can't be restored properly. For our devices TWRP is barely universal. People selling crossflashed phones know this which is why they sell them.
I prefer the manual backup using adb shell you can do it with terminal emulator as well.
Qfil is very powerful for Qualcomm devices and we'll figure out how to make back ups of all partitions that involve serial numbers and IMEI ( nvdata and efs).
Just wait you'll see.

netookska05 said:
Remember now bootloader and root for the LG g7 is just the beginning. You talk about nvdata you might as well throw out EFS backup as well.
The point is that TWRP creates faulty EFS backups on many devices which can't be restored properly. For our devices TWRP is barely universal. People selling crossflashed phones know this which is why they sell them.
I prefer the manual backup using adb shell you can do it with terminal emulator as well.
Qfil is very powerful for Qualcomm devices and we'll figure out how to make back ups of all partitions that involve serial numbers and IMEI ( nvdata and efs).
Just wait you'll see.
Click to expand...
Click to collapse
Thats already been possible since day 1, use qpst with your msl code to backup qcn with imei and s/n.

netookska05 said:
The point is that TWRP creates faulty EFS backups on many devices which can't be restored properly. For our devices TWRP is barely universal. People selling crossflashed phones know this which is why they sell them.
Click to expand...
Click to collapse
I don't understand. What does twrp have to do with any of this? My bootloader is locked and the stock recovery is still there. The devices are likely just flashed with LGup as is, and that doesn't seem to have effected much outside of a missing SN.
Are you saying that my cross flashed phone would effect things if I tried to root somehow? Or am I missing the point here?
loonycgb2 said:
Thats already been possible since day 1, use qpst with your msl code to backup qcn with imei and s/n.
Click to expand...
Click to collapse
Can you please elaborate for those unfamiliar with this?

Dishe said:
I don't understand. What does twrp have to do with any of this? My bootloader is locked and the stock recovery is still there. The devices are likely just flashed with LGup as is, and that doesn't seem to have effected much outside of a missing SN.
Are you saying that my cross flashed phone would effect things if I tried to root somehow? Or am I missing the point here?
Can you please elaborate for those unfamiliar with this?
Click to expand...
Click to collapse
Using TWRP to create a backup of efs. Sometimes the restore is faulty.
EFS partition holds up the unique IMEI number of the device, also other identifying numbers like MAC address, MEID, and ESN are stored up in this partition.
Check you IMEI with this.
https://imeipro.info/check_lg.html
To get your sn.

Oh ok.
So I don't actually need to know my SN but I'd like it to not be blank if flashing back to a previous version would restore it... Especially if there are possibly other parts of nvram that may be corrupt that I'm unaware of?

Thanks for the info. The one I got said it can't work on Sprint or Verizon networks, and is missing the serial #, as you said.

I got just one from bay with S/N missing and software version G710ULM10g. Latest patch level Sep 1, 2018 (Android 8.0.0). Is there any way to install Android 10 based ROM?
Assuming that after following the steps (Part 1 only) (hope we can skip part 2?) to somehow install G710ULM20e_00_NAO_US_OP_1010 (Android 9), is there a way to follow similar steps after part-1 to update it to Android 10 based ROM?
It would be great if someone can help to install Android 10 directly from Android 8.0 (without the need to installing Android 9). I am not sure if its even possible to get Android 10 on such bay unlocked devices without S/N.

vishal198900 said:
I got just one from bay with S/N missing and software version G710ULM10g. Latest patch level Sep 1, 2018 (Android 8.0.0). Is there any way to install Android 10 based ROM?
Assuming that after following the steps (Part 1 only) (hope we can skip part 2?) to somehow install G710ULM20e_00_NAO_US_OP_1010 (Android 9), is there a way to follow similar steps after part-1 to update it to Android 10 based ROM?
It would be great if someone can help to install Android 10 directly from Android 8.0 (without the need to installing Android 9). I am not sure if its even possible to get Android 10 on such bay unlocked devices without S/N.
Click to expand...
Click to collapse
If you must know the serial number there is a one site that you enter imei and it'll tell you what it is. Just gotta search on Google.
Serial number is lost when bootloader is unlocked. You can regain it if you relock and go back to stock. Not sure what version of g7 you have. More likely it's probably crossflashed and sold like that so there won't be a kdz to go back to stock.
Android 10 has a thread they tell you what kdz to crossflash too and how to update to android 10 with the activity launcher app.

I just got a 710pm off ebay. I unlocked the bootloader, crossflashed to ulm pie, and rooted. It works just fine. [emoji106]
Sent from my LM-G710 using Tapatalk

netookska05 said:
If you must know the serial number there is a one site that you enter imei and it'll tell you what it is. Just gotta search on Google.
Serial number is lost when bootloader is unlocked. You can regain it if you relock and go back to stock. Not sure what version of g7 you have. More likely it's probably crossflashed and sold like that so there won't be a kdz to go back to stock.
Click to expand...
Click to collapse
I don't know if there's much use of serial number. Isn't it better to have unlocked bootloader?
netookska05 said:
Android 10 has a thread they tell you what kdz to crossflash too and how to update to android 10 with the activity launcher app.
Click to expand...
Click to collapse
Can you please help me with the correct thread post for crossflashed devices like mine bought through ebay? I appreciate your help.

vishal198900 said:
I don't know if there's much use of serial number. Isn't it better to have unlocked bootloader?
Can you please help me with the correct thread post for crossflashed devices like mine bought through ebay? I appreciate your help.
Click to expand...
Click to collapse
Here's the crossflashing thread using command line lgup.
Thread: https://forum.xda-developers.com/lg-g7-thinq/how-to/cross-flash-oreo-pie-firmwares-lg-g7-g7-t3915303
There's another lgup dualmode you can use the partion dl option to install the Korean kdz that Android 10 uses. Search for that.
To install the Android 10 LGUP_FOTA.up update which you use activity launcher to install.
Thread:
https://forum.xda-developers.com/lg-g7-thinq/how-to/android-10-beta-lg-g7-g710n-t4059483

netookska05 said:
Here's the crossflashing thread using command line lgup.
Thread: https://forum.xda-developers.com/lg-g7-thinq/how-to/cross-flash-oreo-pie-firmwares-lg-g7-g7-t3915303
There's another lgup dualmode you can use the partion dl option to install the Korean kdz that Android 10 uses. Search for that.
To install the Android 10 LGUP_FOTA.up update which you use activity launcher to install.
Thread:
https://forum.xda-developers.com/lg-g7-thinq/how-to/android-10-beta-lg-g7-g710n-t4059483
Click to expand...
Click to collapse
Thanks. My phone (G710PM) is cross-flashed with G710ULM firmware Android 8. Please suggest is below plan will work?
1) First update existing firmware to stock Android 9.0 i.e. G710ULM20e_00_NAO_US_OP_1010 using these steps.
2) Then install Lineage OS 17.1 (based on Android 10) because it needs stock Android 9.0 as a pre-requisite using these steps.

vishal198900 said:
Thanks. My phone (G710PM) is cross-flashed with G710ULM firmware Android 8. Please suggest is below plan will work?
1) First update existing firmware to stock Android 9.0 i.e. G710ULM20e_00_NAO_US_OP_1010 using these steps.
2) Then install Lineage OS 17.1 (based on Android 10) because it needs stock Android 9.0 as a pre-requisite using these steps.
Click to expand...
Click to collapse
Yes it will work.

I'd also like to add that Google Pay will not work, at retail brick and mortar stores.
A pop up says device may be rooted or modified.
I have magisk installed and it seems to trick Schwab banking app.
Edit:
Edit: I followed the instruction from the following video, and was able to get GPay to accept the card. Also Gpay needs to be manually hidden in magisk, be sure to select 'display system apps' to find it.
https://www.youtube.com/watch?v=wKYC0r-m0Mo
Click to expand...
Click to collapse

I am not an expert but I just bought one of these Ebay phones. It has Pie but what would like to know is how can I get the security updates? Or is that not possible? Please help. Thanks in advance.

captain barbosa said:
I am not an expert but I just bought one of these Ebay phones. It has Pie but what would like to know is how can I get the security updates? Or is that not possible? Please help. Thanks in advance.
Click to expand...
Click to collapse
If you're on Pie, I doubt you have one of these Sprint phones. Check if you pass SafetyNet and if so, you have a native ULM model. Most G7 variants receive very few updates (including the ULM).